Games and trips straddling bovid in compounds (9)

'compounds' is the definition.
(peroxide is a kind of compound)

'games and trips straddling bovid' is the wordplay.
'games' becomes 'pe' (abbreviation for Physical Education).
'and' says to put letters next to each other.
'trips' becomes 'rides' (I've seen this before).
'straddling' means one lot of letters goes inside another (straddle can mean to lie on both sides of).
'bovid' becomes 'ox' (ox is a kind of bovid).
'rides' going around 'ox' is 'roxides'.
'pe'+'roxides'='PEROXIDES'

'in' is the link.